Specific isobar heat capacity cp steam, specific isochor heat capacity cv steam, adiabatic exponent or isentropic exponent kappa steam, thermic conductivity steam, speed of sound steam. density of water vapor is equal to 0.756182 kg/m³. Specific isobar heat capacity cp water, specific isochor heat capacity cv water, thermic conductivity water, speed of sound water.ĭensity steam, dynamic viscosity steam, kinematic viscosity steam, specific inner energy steam, specific enthalpy steam, specific entropy steam, Use Water vapor weighs 0.000756182 gram per cubic centimeter or 0.756182 kilogram per cubic meter, i.e. Hot air can hold more water vapor than cold air, so the amount of water vapor is highest in hot, tropical areas and lowest in cold, polar regions. The amount of water vapor ranges from a trace amount up to 4 of the mass of air. Materials heavier than air (examples: propane, hydrogen sulfide, ethane, butane, chlorine, sulfur. The amount of water vapor in air varies according to the temperature and density of air. Materials lighter than air have vapor densities less than 1.0 (example: acetylene, methane, hydrogen). Values are for atmospheric pressure - 29. The following thermodynamic properties are calculated:ĭensity water, dynamic viscosity water, kinematic viscosity water, specific inner energy water, specific enthalpy water, specific entropy water, The weight of a vapor or gas compared to the weight of an equal volume of air an expression of the density of the vapor or gas. Density and specific volume of dry air and water vapor at temperatures ranging 225 to 900 oF (107 to 482oC) are indicated below. Data on the density of water are presented in units of kg/m 3 and g/ml. The density of water at these temperatures can be found in the table below. Online calculation of properties of water and steamĮmail: scientific and engineering data onlineĬalculation of thermodynamic properties of water Pressure:Ĭalculation of thermodynamic properties of overheated steamĬalculation of thermodynamic properties of saturated steam Pressure: Water exists as a separate liquid in the temperature range from 0 to a maximum of 374.12☌ this is its critical temperature at which the interface between liquid and water vapor disappears.